<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像icon -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 表单 -->
      <el-form label-width="0px" ref="loginFormRef" :rules="loginRules" :model="loginForm" class="login_form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password" type="password"></el-input>
        </el-form-item>
        <!-- 登录按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="infos" @click="formReset">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>

export default {
  data () {
    return {
      loginForm: {
        username: '',
        password: ''
      },
      loginRules: {
        // 用户名
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        // 密码
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 3, max: 7, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    formReset () {
      this.$refs.loginFormRef.resetFields()
    },
    login () {
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        var { data: ret } = await this.$http.post('login', this.loginForm)
        console.log(ret)
        if (ret.meta.status !== 200) return this.$message.error(ret.meta.msg)
        this.$message.success(ret.meta.msg)
        // 登录成功后保存token
        window.sessionStorage.setItem('token', ret.data.token)
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container{
  background-color: #2b4b6b;
  height: 100%;
}
.login_box{
  width: 450px;
  height: 300px;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
}
.avatar_box{
  width: 130px;
  height: 130px;
  background-color:#fff;
  border: 1px solid #eee;
  padding: 10px;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  overflow: hidden;
  box-shadow: 0 0 10px #bbb;
  img{
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.btns{
  display: flex;
  justify-content: flex-end;
}
.login_form{
  position:absolute;
  bottom: 0;
  padding: 0 20px;
  width: 100%;
  box-sizing: border-box;
}
</style>
